Check the listing for details. Active System Adapter For Audi A6 C4 4A 4B A8 D2 D3 TT 8N Fully Part Active A.... Condition: New. Listed at 56.44 USD. Welcome to ACR Schweinfurt and Extremeaudio! Discover our extensive range of car hifi products: car radios, navigation, speakers, amplifiers, subwoofers and more. Benefit from high-quality items at reasonable prices and great special items. Browse well-known brands such as Audio System and Zenec! Visit our online store at www.extremeaudio.com for fast delivery and top notch customer service. Quality and your sound experience are our top priority! Take advantage of our expertise from 20 years of car hi-fi experience for unique sound in your vehicle! New product from dealer in TOP quality specialist dealer with many years of industry experience perfect support by car infotainment specialists VAT invoice in your name collection.